Acta Physica Polonica B

Vol. 37, No. 4, April 2006, page 1193


Charge Asymmetries in \gamma \gamma \to \mu +\mu -+ \nu 's/ \gamma \gamma \to W\pm \mu \mp +\nu 's with Polarized Photons Cascade \tau \to \mu \mu {bar}{\nu } Contribution

D.A. Anipko, I.F. Ginzburg, K.A. Kanishev, A.V. Pak, M. Cannoni, O. Panella

It is shown that the difference in the momentum distributions of positively (\mu +, e+) and negatively (\mu -, e-) charged leptons in the reactions of type \gamma \gamma \to \mu +\mu - + N\nu , \gamma \gamma \to W\pm \mu \mp + N\nu at \sqrt {s}> 200 GeV with polarized photons demonstrates a considerable {ITALIC charge asymmetry} of muon distributions, sensitive to New Physics effects. Contribution of processes with intermediate \tau -lepton in \gamma \gamma \to W\pm \mu \mp + N\nu is taken into account.

PACS numbers: 12.15.Ji, 12.60.--i, 14,70.--e



 
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